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1 R.D. Boyd, 13 (13): 105-113, 2011
2 N.W. Song, 46 (46): 480-488, 2009
3 M.C. Pohl, 25 (25): 1612-1616, 1996
4 W.D. Pyrz, 24 (24): 11350-11360, 2008
5 G. Kroner, 20 (20): 111-123, 2003
6 O. Elizalde, 17 (17): 236-243, 2000
7 M. Baalousha, 31 (31): 983-993, 2012
8 S. Mössmer, 33 (33): 4791-4798, 2000
9 F. Franco, 274 (274): 101-117, 2004
10 V. Sharmaa, 185 (185): 211-218, 2009
11 J.L. Viota, 290 (290): 419-425, 2005
12 C.D. Vo, 23 (23): 408-413, 2007
13 A.B.D. Nandiyanto, 120 (120): 447-453, 2009
14 T. Provder, 32 (32): 143-153, 1997
15 C.M. Hoo, 10 : 89-96, 2008
16 M. Anhalt, 119 (119): 732-735, 2011